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Product Detailed Parameters
- Description：OPTOISOLTR 5.3KV TRIAC 1CH 4-SMD
- Series：-
- Mfr：Vishay Semiconductor Opto Division
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Triac
- Zero Crossing Circuit：No
- Number of Channels：1
- Voltage - Isolation：5300Vrms
- Voltage - Off State：800 V
- Static dV/dt (Min)：1kV/µs
- Current - LED Trigger (Ift) (Max)：10mA
- Current - On State (It (RMS)) (Max)：100 mA
- Current - Hold (Ih)：400µA (Typ)
- Turn On Time：-
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：50 mA
- Operating Temperature：-55°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SMD
- Approval Agency：CQC, cUL, UL, VDE
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Overview
The VOT8121AB-VT is a single-channel optoisolator featuring a Triac output, manufactured by Vishay Semiconductor Opto Division. It provides an isolation voltage of 5300Vrms and supports a maximum RMS on-state current of 100 mA with a blocking voltage of 800 V. The device operates within a temperature range of -55°C to 110°C and utilizes a 4-SMD surface-mount package. Key electrical parameters include a typical forward voltage of 1.2 V, a maximum DC forward current of 50 mA, and a minimum static dV/dt rating of 1 kV/µs.
Feature Summary
- High-voltage insulation capability rated at 5300Vrms for robust circuit separation
- Triac output configuration designed for AC load switching applications
- Wide operating temperature range suitable for demanding industrial environments
Applications
- Solid-state relay circuits requiring high isolation
- AC motor control systems
- Industrial process control instrumentation
Procurement Notes
Verify the specific suffix VT against the manufacturer datasheet to confirm package type and tape-and-reel specifications. Ensure compliance with RoHS3 standards and check for any recent PCN updates regarding assembly sources or bond wire diameter changes before finalizing procurement.
Selection Notes
Select this component when high isolation voltage and Triac output are required in a compact SMD form factor. Compare the 5300Vrms rating against system requirements and verify that the 100 mA RMS current capacity meets the load demands. Consider the -55°C to 110°C operating range for environmental suitability.
Part Context
This part belongs to the VOT8121 family of Triac output optocouplers from Vishay. It shares core electrical characteristics with variants like VOT8121AB-T3 but differs in packaging and reel specifications. The family is designed for general-purpose AC switching with high reliability and safety certifications including UL, cUL, and VDE.
Replacement Considerations
Direct substitutes include VOT8121AB-T3 and VOT8121AB-T2, which share identical electrical ratings. Verify package compatibility (4-SMD) and ensure the replacement variant meets the same isolation and current specifications.
